A fast, easy, and fun-to-use percent change calculator. Now you can quickly calculate discounts, financial gains, and percent changes without having to use Excel, Google, or do the long math.

Delta Calc can solve for any of the three values within the percent change formula. It solves for the a, b, or c value in the percent change formula ((b - a) / a) * 100 = c.

The calculator can also solve for the a, b, or c value in the value change formula b - a = c.

Other features include:
- Haptic feedback (can be disabled if desired)
- Change the number of decimal places displayed in the result (from 0 to 10)
- Fun animation when tapping the swap button (warning: could become addictive)
- Delightful to tap number pad buttons
- Enable and disable keyboard buttons

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Privacy: https://deltacalc.app/privacy
Support: https://deltacalc.app/support